The password credentials for virtual machine 'guest VM name' could not be found. Use dsmc SET PASSWORD -type=VMGUEST 'VM guest name' 'userid' 'password' to save encrypted password.
The required password was not found.
Processing stops
Use dsmc SET PASSWORD -type=VMGUEST 'VM guest name' 'userid' 'password' to save encrypted password. And then retry the 'backup vm' operation.